85028459 has 2 divisors, whose sum is σ = 85028460. Its totient is φ = 85028458.

The previous prime is 85028431. The next prime is 85028467. The reversal of 85028459 is 95482058.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85028459 is a prime.

It is not a weakly prime, because it can be changed into another prime (85228459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42514229 + 42514230.

It is an arithmetic number, because the mean of its divisors is an integer number (42514230).

Almost surely, 2^85028459 is an apocalyptic number.

85028459 is a deficient number, since it is larger than the sum of its proper divisors (1).

85028459 is an equidigital number, since it uses as much as digits as its factorization.

85028459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 41.

The square root of 85028459 is about 9221.0877341017. The cubic root of 85028459 is about 439.7320320838.

It can be divided in two parts, 8502 and 8459, that added together give a palindrome (16961).

The spelling of 85028459 in words is "eighty-five million, twenty-eight thousand, four hundred fifty-nine".